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    GRAVITY AND/OR ACCELERATION MEASUREMENTS USING DUAL INTERFEROMETER CONFIGURATIONS
    1.
    发明公开
    GRAVITY AND/OR ACCELERATION MEASUREMENTS USING DUAL INTERFEROMETER CONFIGURATIONS 审中-公开

    公开(公告)号：EP3194719A4

    公开(公告)日：2018-04-11

    申请号：EP15827817

    申请日：2015-07-29

    Applicant: BAKER HUGHES INC

    Inventor： CSUTAK SEBASTIAN

    IPC: E21B47/00 ,  E21B49/00 ,  G01V7/04

    CPC classification number: G01V7/04

    Abstract: An apparatus for estimating gravitational properties includes an optical source, a first interferometer including a fixed reference reflector and a first reflector coupled to a first moveable mass, a second interferometer including the fixed reference reflector and a second reflector coupled to a second moveable mass, a first detector configured to detect a first interference pattern generated by the first interferometer, and a second detector configured to detect a second interference pattern generated by the second interferometer. The first mass is configured to move a first amount in response to a change in gravitational force, and the second mass is configured to move a second amount in response to a change in gravitational force, the second amount being smaller than the first amount. The apparatus also includes a processor configured to estimate the change in gravitational force based on a combination of the first and second interference patterns.

    WAVELENGTH-SELECTIVE, HIGH TEMPERATURE, NEAR INFRARED PHOTODETECTORS FOR DOWNHOLE APPLICATIONS
    5.
    发明公开
    WAVELENGTH-SELECTIVE, HIGH TEMPERATURE, NEAR INFRARED PHOTODETECTORS FOR DOWNHOLE APPLICATIONS 审中-公开
    WELLENLÄNGENSELEKTIVE，HOCHTEMPERATUR-，NAHINFRAROT-FOTODETEKTORENFÜRBOHRLOCHANWENDUNGEN

    公开(公告)号：EP3052758A4

    公开(公告)日：2017-05-31

    申请号：EP14850992

    申请日：2014-10-03

    Applicant: BAKER HUGHES INC

    Inventor： DIFOGGIO ROCCO ,  CSUTAK SEBASTIAN

    IPC: E21B49/08 ,  E21B47/00 ,  E21B47/10 ,  G01N21/31

    CPC classification number: E21B49/081 ,  E21B47/102 ,  E21B2049/085 ,  G01J3/10 ,  G01J3/36 ,  G01N21/359

    Abstract: An apparatus for estimating a property of a downhole fluid includes a carrier configured to be conveyed through a borehole penetrating the earth, a fluid extraction device disposed at the carrier and configured to extract a sample of the downhole fluid, and a probe cell having a window to receive the sample. The apparatus further includes a light source to illuminate the sample through the window with light photons, and a photodetector to receive light photons through the window that have interacted with the downhole fluid and generate a signal indicative of an amount of the received light photons. The generated signal is indicative of the property. The photodetector has an optical cavity having a semiconductor that has a difference between a valence energy band and a conduction energy band for electrons that is greater than the energy of each of the received light photons.

    Abstract translation: 一种用于估计井下流体的性质的装置包括：承载器，被配置为通过穿透地球的钻孔被输送;流体抽取装置，被布置在承载器处并被配置为抽取井下流体的样本;探针单元，其具有窗口 接收样品。 该设备进一步包括光源，其通过具有光子光子的窗口照射样品，以及光电探测器，其接收通过窗口的光子，其已经与井下流体相互作用并产生指示所接收的光子量的信号。 生成的信号表示属性。 该光电探测器具有光学腔，该光学腔具有半导体，该半导体对于电子的价能带和传导能带之间的差值大于每个所接收的光子的能量。

    METHOD AND APPARATUS FOR DOWNHOLE SPECTROSCOPY
    7.
    发明申请
    METHOD AND APPARATUS FOR DOWNHOLE SPECTROSCOPY 审中-公开
    井下光谱法的方法与装置

    公开(公告)号：WO2009140387A3

    公开(公告)日：2010-03-11

    申请号：PCT/US2009043791

    申请日：2009-05-13

    Applicant: BAKER HUGHES INC ,  CSUTAK SEBASTIAN

    Inventor： CSUTAK SEBASTIAN

    IPC: E21B49/08 ,  G01V3/26 ,  G01V8/10

    CPC classification number: G01V3/30

    Abstract: Apparatus and method for estimating a property of a downhole fluid including a carrier that is conveyed in a borehole, and a semiconductor electromagnetic energy source carried by the carrier, the semiconductor electromagnetic energy source having an active region that includes one or more nitride-based barrier layers that are modulation-doped using a nitride-based doped layer.

    Abstract translation: 用于估计包括在井眼中传送的载体的井下流体的性质的装置和方法以及由载体承载的半导体电磁能源，所述半导体电磁能源具有包括一个或多个氮化物基屏障的有源区 使用氮化物基掺杂层调制掺杂的层。

    APPARATUS AND METHOD FOR ESTIMATING FILTRATE CONTAMINATION IN A FORMATION FLUID
    9.
    发明申请
    APPARATUS AND METHOD FOR ESTIMATING FILTRATE CONTAMINATION IN A FORMATION FLUID 审中-公开
    用于估计形成流体中过滤器污染的装置和方法

    公开(公告)号：WO2008058058A3

    公开(公告)日：2008-08-21

    申请号：PCT/US2007083591

    申请日：2007-11-05

    Applicant: BAKER HUGHES INC ,  CSUTAK SEBASTIAN ,  DIFOGGIO ROCCO

    Inventor： CSUTAK SEBASTIAN ,  DIFOGGIO ROCCO

    IPC: E21B47/10 ,  G01N21/39 ,  G01V8/02

    CPC classification number: G01V8/02 ,  G01N21/39

    Abstract: The disclosure, in one aspect, provides a method for estimating a property of a fluid that includes: pumping an ultraviolet (UV) light into a fluid withdrawn from a formation downhole at a wavelength that produces light due to the Raman effect at wavelengths that are shorter than the substantial wavelengths of fluorescent light produced from the fluid; detecting a spectrum corresponding to the Raman effect light ("Raman spectrum"); and processing the detected Raman spectrum at one or more selected wavelengths to estimate a property of the fluid. In another aspect, the disclosure provides an apparatus that includes a laser that induces UV light at a selected wavelength into a fluid in a chamber, a detector that detects Raman scattered light at wavelengths shorter than the wavelengths of the fluorescent light scattered by the fluid, and a processor that analyzes a spectrum corresponding the Raman scattered light at a selected wavelength to estimate a property of the fluid.

    Abstract translation: 在一个方面，本发明提供了一种用于估计流体性质的方法，该方法包括：将紫外线（UV）光泵入从井下地层中排出的流体中，所述流体以由波长为波长的拉曼效应产生光的波长 比从流体产生的荧光的实质波长短; 检测与拉曼光效应相对应的光谱（“拉曼光谱”）; 以及在一个或多个所选波长处理检测到的拉曼光谱以估计流体的性质。 在另一方面，本发明提供了一种装置，其包括将选定波长的紫外光诱导到室内的流体中的激光器;检测器，其检测波长短于由流体散射的荧光的波长的波长的散射光; 以及处理器，其分析对应于所选波长的拉曼散射光的光谱，以估计流体的性质。

    DOWNHOLE SENSORS USING MANUFACTURED ANISOTROPIC PERMITTIVITY
    10.
    发明申请
    DOWNHOLE SENSORS USING MANUFACTURED ANISOTROPIC PERMITTIVITY 审中-公开
    卧式传感器使用制造的各向异性的允许性

    公开(公告)号：WO2011130239A3

    公开(公告)日：2012-04-05

    申请号：PCT/US2011032074

    申请日：2011-04-12

    Applicant: BAKER HUGHES INC ,  CSUTAK SEBASTIAN

    Inventor： CSUTAK SEBASTIAN

    IPC: G01V3/26 ,  G01N27/72 ,  G01R29/08

    CPC classification number: G01J4/00 ,  G01D5/268 ,  G01D5/344 ,  G01D5/345 ,  G01J9/00 ,  G01L1/241 ,  G01N21/23 ,  G01P15/093 ,  G01V11/00

    Abstract: A apparatus for use in a borehole in an earth formation. The apparatus may include: an electromagnetic source; an anisotropic permittivity material, either natural or manufactured, receiving electromagnetic radiation from the electromagnetic source; and a detector for estimating the electromagnetic radiation transmitted through the anisotropic permittivity material as an indication of a parameter of interest. Also, a method of estimating a parameter of interest using the aforementioned apparatus.

    Abstract translation: 一种用于地层钻孔的装置。 该装置可以包括：电磁源; 自然或制造的各向异性介电常数材料接收来自电磁源的电磁辐射; 以及用于估计通过各向异性介电常数材料传输的电磁辐射作为感兴趣参数的指示的检测器。 此外，使用上述装置估计感兴趣的参数的方法。

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